2 * This file is part of DisOrder.
3 * Copyright (C) 2007, 2008 Richard Kettlewell
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
26 static inline struct timeval tvsub(const struct timeval a,
27 const struct timeval b) {
30 r.tv_sec = a.tv_sec - b.tv_sec;
31 r.tv_usec = a.tv_usec - b.tv_usec;
36 if(r.tv_usec > 999999) {
43 static inline struct timeval tvadd(const struct timeval a,
44 const struct timeval b) {
47 r.tv_sec = a.tv_sec + b.tv_sec;
48 r.tv_usec = a.tv_usec + b.tv_usec;
53 if(r.tv_usec > 999999) {
60 static inline double tvdouble(const struct timeval a) {
61 return a.tv_sec + a.tv_usec / 1000000.0;
64 static inline int64_t tvsub_us(const struct timeval a,
65 const struct timeval b) {
66 return (((uint64_t)a.tv_sec * 1000000 + a.tv_usec)
67 - ((uint64_t)b.tv_sec * 1000000 + b.tv_usec));
70 /** @brief Great-than comparison for timevals */
71 static inline int tvgt(const struct timeval *a, const struct timeval *b) {
72 if(a->tv_sec > b->tv_sec)
74 if(a->tv_sec == b->tv_sec
75 && a->tv_usec > b->tv_usec)
81 comparison for timevals */
82 static inline int tvlt(const struct timeval *a, const struct timeval *b) {
83 if(a->tv_sec < b->tv_sec)
85 if(a->tv_sec == b->tv_sec
86 && a->tv_usec < b->tv_usec)
91 /** @brief Greater-than-or-equal comparison for timevals */
92 static inline int tvge(const struct timeval *a, const struct timeval *b) {
96 /** @brief Less-than-or-equal comparison for timevals */
97 static inline int tvle(const struct timeval *a, const struct timeval *b) {
101 #endif /* TIMEVAL_H */